Part 298

Ap"a*tite (&?;), n. [Gr. &?; deceit, fr. &?; to deceive; it having been often mistaken for other minerals.] (Min.) Native phosphate of lime, occurring usually in six-sided prisms, color often pale green, transparent or translucent.

A`pau`mé" (&?;), n. See Appaumé.

Ape (p), n. [AS. apa; akin to D. aap, OHG. affo, G. affe, Icel. api, Sw. apa, Dan. abe, W. epa.] 1. (Zoöl.) A quadrumanous mammal, esp. of the family Simiadæ, having teeth of the same number and form as in man, and possessing neither a tail nor cheek pouches. The name is applied esp. to species of the genus Hylobates, and is sometimes used as a general term for all Quadrumana. The higher forms, the gorilla, chimpanzee, and ourang, are often called anthropoid apes or man apes.

The ape of the Old Testament was probably the rhesus monkey of India, and allied forms.

2. One who imitates servilely (in allusion to the manners of the ape); a mimic. Byron.

3. A dupe. [Obs.] Chaucer.

Ape, v. t. [imp. & p. p. Aped; p. pr. & vb. n. Aping.] To mimic, as an ape imitates human actions; to imitate or follow servilely or irrationally. "How he apes his sire." Addison.

The people of England will not ape the fashions they have never tried. Burke.

A*peak" (&?;), adv. & a. [Pref. a- + peak. Cf. F. à pic vertically.] (Naut.) In a vertical line. The anchor in apeak, when the cable has been sufficiently hove in to bring the ship over it, and the ship is them said to be hove apeak. [Spelt also apeek.]

Ape"hood (&?;), n. The state of being an ape.

A*pel"lous (&?;), a. [Pref. a- not + L. pellis skin.] Destitute of skin. Brande & C.

Ap"en*nine (&?;), a. [L. Apenninus, fr. Celtic pen, or ben, peak, mountain.] Of, pertaining to, or designating, the Apennines, a chain of mountains extending through Italy.

A*pep"sy (&?;), n. [NL. apepsia, fr. Gr. &?;, fr. &?; uncooked, undigested; 'a priv. + &?; cooked, &?; to cook, digest.] (Med.) Defective digestion, indigestion. Coxe.

Ap"er (&?;), n. One who apes.

||A*pe"re*a (&?;), n. [Native name.] (Zoöl.) The wild Guinea pig of Brazil (Cavia aperea).

A*pe"ri*ent (&?;), a. [L. aperiens, p. pr. of aperire to uncover, open; ab + parire, parere, to bring forth, produce. Cf. Cover, Overt.] (Med.) Gently opening the bowels; laxative. -- n. An aperient medicine or food. Arbuthnot.

A*per"i*tive (&?;), a. [Cf. F. apéritif, fr. L. aperire.] Serving to open; aperient. Harvey.

A*pert" (&?;), a. [OF. apert, L. apertus, p. p. of aperire. See Aperient, and cf. Pert, a.] Open; evident; undisguised. [Archaic] Fotherby.

A*pert", adv. Openly. [Obs.] Chaucer.

A*per"tion (&?;), n. [L. apertio.] The act of opening; an opening; an aperture. [Archaic] Wiseman.

A*pert"ly, adv. Openly; clearly. [Archaic]

A*pert"ness, n. Openness; frankness. [Archaic]

Ap"er*ture (?; 135), n. [L. apertura, fr. aperire. See Aperient.] 1. The act of opening. [Obs.]

2. An opening; an open space; a gap, cleft, or chasm; a passage perforated; a hole; as, an aperture in a wall.

An aperture between the mountains. Gilpin.

The back aperture of the nostrils. Owen.

3. (Opt.) The diameter of the exposed part of the object glass of a telescope or other optical instrument; as, a telescope of four-inch aperture.

The aperture of microscopes is often expressed in degrees, called also the angular aperture, which signifies the angular breadth of the pencil of light which the instrument transmits from the object or point viewed; as, a microscope of 100° aperture.